What is the value of the function y=18x−13 when x=−4 ?(1 point)
Responses
−16
negative 16
−12.5
negative 12.5
−15
negative 15
−13.5
To find the value of the function y=18x-13 when x=-4, simply substitute x=-4 into the function and solve for y.
Plug in the value of x=-4:
y = 18(-4) - 13
Multiply -4 by 18:
y = -72 - 13
Combine the numbers:
y = -85
So, the value of the function y=18x-13 when x=-4 is -85.